joseph de eyoke



(NO Model.)

A J. J. DE RYOKE. ADJUSTABLE ELEVATOR PLATFORM EOR v ssELs EOE CARRYING RAILWAY OARs.

NO. 283,218. Patented Aug. '14, 1883.

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I 1? j WWW/W 6 VI/I/III/IIII/l WITNESSES INVENTOR W 1 fipg f y BY r -ATTORNEYS N. PETERS. PMIo-bthogmphu. Washington. 0.1:.

UNITED STATES PATENT OFFICE...

\ J. Josnrn on RYOKE, on NEW YORK, N. Y.

ADlUSTABLE ELEVATOR-PLATFORM FOR VESSELS FOR CARRYING RAILWAY-CARS.

' SPECIFICATION forming part of Letters Patent No. 283,218, dated August 14, 1883.

' Q Application filed January 18, 1883. No model.)

To all whom it may concern.-

of the city, county, and State of New York,

have invented a new and Improved Adjustable Elevator-Platform for Vessels for Carrying Railway-(Jars, of which the following is a full, clear, and exact description.

The object of my invention is to provide certain new and useful improvements in elevatorplatforms for vessels carrying railway-cars, which elevator-platforms are used for raising or lowering the carstothe level of the dock, according to the height of the tide.

. The invention consists in the combination, with a vertical screw-spindle, of a tube surrounding the upper part of the same, and rest ing on anut through which the spindle passes, which tube can be locked on the nut by means of a bindingscrew, and which tube supports the girder carrying the track-platibrimwhereby, when the screw is turned, the nut, the tube, and the girder can be lowered; and if the tube and nut are disengaged the tube-nut will re-.

main stationary, thus permitting of adjusting the girder or platform in a level position.

The invention also consists in the combination, with a series of screw-spindles, of wor1nwheels locked on the same by removable keys,

and of worms engaging with the worm-wheels,

and mounted on shafts provided with clutching devices for locking the worms on the same,

whereby some clutches canbe disengaged if the spindles and sockets.

corresponding spindles are not to be turned when the platforms are to be adjusted in position vertically.

Reference is to be had to the accompanying drawings, forming part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure l is a cross-sectional elevation of a vessel provided with my improved elevatorplatforms for raising and lowering cars, parts being broken out. Fig. 2 is a sectional plan view of the same on the line as r, Fig. 1. Fig. 3 is avertical sectional view of one of the screw- A series of vertical screw-spindles, A, rest instep-bearings B, of some suitable construction, secured on the bottom of the vessel 0, and on the lower end of each spindle aworm-wheel,

D, is mounted, which engages with aworm, F, mounted on a transverse shaft, E, provided with a Worm-wheel, G, engaging with a worm mounted on a longitudinal shaft, H,which can be rotated by means of some suitable motor. The several transverse shaftsE and the screwspindles A can thus be operated simultaneously by the shaft H. r

The upper part of each smooth and passes through a guide-sleeve, J provided at its upper end with an annular flange, J, or lugs resting on the upper end of a tube, K, the lower end of which rests on an annular flange, L, or lugs at the lower end of ascrew sleeve or nut, L, surrounding the screwspindle A. The tube K is 'provided with an spindle A is made internal flange, K, or lugs resting on the upper end of the screw sleeve or nut L. By

means of a binding-screw, M, passed through the tube K,the same can be locked or fixed on the screw sleeve or nut L. The tube Kpasses through a guide-sleeve, N, provided at its up per end with flanges Nor lugs resting on the deck-beams O.

Brackets P, attached to the transversetracksupporting girders Q, rest on and are secured to the upper ends of the guide-sleeves J. If the tube K is locked to the screw sleeve or nut L and the spindle A is rotated, the tube K will be raisedor lowered, and the rail-supporting girder will be raised or lowered withit. Sometimes the bottoms ofthe vessels settle unevenly,

and it may be necessary to adj ustthe tubes K V to make the girders Q level. The screw M is then loosened, so that the nut L can be turned in the lower end of the tube, and the tube K is raised or lowered, as may be required, by

1. The combination, with the screw-spindle A, of the nut L, the tube K, resting on the same, and the transverse girder Q, supported by the tube K, substantially as herein shown and de-- '4. The combination, wlth the screw-spindle A, of the nut L, the tube K, the guide-s1eeve J, the girder Q, and the sleeve N, resting on deck-beams, substantially as herein shown and described, and for the purpose set forth.

5. The combination, with the'screw-spindle A, of the nut L, the guide-sleeve J, the tube K, provided with an internal flange, K, or lugs, and the girder Q, substantially as herein shown and described, and for the purpose set forth. 7

6. The combination, with a vessel, of a series of vertical screw-spindles, worm-wheels mounted on the same and provided with removable keys, and of worms mounted on transverse horizontal shafts, and engaging with the Y worm-wheels, and provided with clutchingdevices for locking them on the shafts, substantially as herein shown and described, and for the purposes set forth.

JQ JOSEPH DE RYOKE.

Witnesses:

OSCAR F. GUNZ, G. SEDGWIQK. 

